Half to william small



(No Model.)-

R. G. ARMSTRONG.

PILTBRING APPARATUS.

No. 271,396.. Patented-JaLSO, 1883.

By MJ .dtI/orney,

PETERS. Phumuvmgnphar. waahimgm. DA C.

Umts-n STATES arnNr tirreno ROBER'I O. ARMSTRONG, OF ALEXANDRIA, VIRGINIA, ASSIGNOR OF ONE- HALF TO WILLIAM SMALL, OF WASHINGTON, DISTRICT OF COLUMBIA.

' FILTERING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 271,396, dated 'January 30, 1883. Application led June 16l 1882. (No model.)

To all whom it may concern Beit known that I, ROBERT O. ARMSTRONG, ofthe city ofAlexandria and State of Virginia, have invented certain new and useful Improvements in Filtering Apparatus, of which the following is a specification.

My invention has for its object a convenient, effective, and inexpensive means ot' filtering water taken from the water-main for house use. It is characterized by the combination ot` a ltering-chainber to which are connected the water induction and eduction pipes, a removable filter contained in said chamber, a well or sediment-chamber designed to catch and retain the impurities deposited from the water, a blow-ott' pipe, a system of cocks or valves whereby, whenever desired, the water can be diverted from its usual course and caused to discharge from the blow-ott' pipe, passing through the sediment-chamber on its way, and acting to wash out and clean that chamber of its contents.

The nature of my invention can best be explained and understood by reference to the accompanying drawing, which represents in vertical central section,'partlyin elevation, an apparatus embodying my improvements.

The apparatus is preferably inclosed in a box, such as shown at A,set in the ground at a suitable depth, and furnished with a cover which -can be removed whenever it is desiredto have access to the apparatus. Proper means for packing the apparatus and protecting' it from the e'ects of cold may be employed, and will be understood without further explanation.

The filtering-chamber is represented at B, and consists in this instance of a stand pipe or tube closed by a removable screw-cap, a, and connected to the water-induction pipe b and eduction-pipe c, provided each with a cock, b or c', and serving, the former toconduct water into the liltering-chamberfrom the water-main, the latter to conduct water from the chamber to the point where it is to be used. Within the liltering-chambcror stand-tubeB is alter, C, consisting ot' a cylindrical shell or case with perforated heads, which iits within the standtube, and is filled with a suitable filtering material. The'lter is placedin the chamber B, between the points b and c, so that all the water passing from the one pipe to 'the other must pass through it. lt is held in the position by any convenient means which will permitit to be removable, the means consisting inthe present instance ot' a supporting-stem, C', and aplate, O2, or its equivalent, resting on top ofthe tube B, and held down thereon by the screw-cap a. The filter is then maintained in position, but at the saine time can readily be got at and removed or lifted out when the box A is opened and the cap a unscrewed. The stand-tube B is continued below the point where the induction-pipe b enters it, and there forms a well or sediment-chamber, D, into which the large impurities and refuse which may enter into the water settle. In order to provide for cleaning the chamber, I connect it to a blow-ofi1 pipe, E, screwed into a cap, c', which closes the upturned end ot' the sediment-chamber. This pipe usually will open into the street or some other convenicntpoint,where it may discharge, as indicated at E', and it is provided at or near its lower end with a cock, d, the stem of which is connected by a crank, d', and connecting-rod d2 to a handle, d3, so as to be within convenient reach when the box-cover is removed. Normally the cock d is closed and cocksb c are open. Under these conditions water passes from the main through the Iilter to the house. When it becomes necessary to rid the sediment-chamber of its contents, cock c is closed and cock d is opened. This diverts the course of the water, which will now pass under full head through the sediment-chamber and out from the blow-oli' pipe E E', carrying along with it the contents of the sedimentchamber, which will thus be washed and cleaned. Objection in some cases may be made to the use ofthe water for that purpose, and to meet this contingency I provide the blow-oft' pipe E with another outlet closed by a removable screw-cap, E2. When this is used the spout E must have a cock, e, by which it can be closed. To clean the sediment-chamber under this arrangement I close all three cocks b c e, vremove the cap E2, apply to the outlet thus uncovered a pump, and open the cock d. The pump, when putin operation, will exhaust the stand-tube and sedimentchamber, to a very great extent,ot` their liquid contents,

IOO

and will take up `some of the sediment as Well, l

along with the water. Whatremains can readily be removed by taking oft' cap a and lifting out l leading' from the upper end of said chamber,

filter C. This leaves tube B open, and access can be had through it to the sedim en t-chamber, which can readily be cleaned ont by means of a small scoop, or hoe or scraper, or other suitable instrument introduced through the tube B.

Having,` described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The ltering-chainber D or stand-tube, and the removable ilter held therein in a position intermediate between the waterin'duction and eduction pipes, in combination with the sediment well or chamber, and the valve or cock, controlled blow-off or discharge pipe E,

substantially as and for the purposes herein' before set forth.

2. The discharge or blow-off pipe provided with two outlets, PIE?, in combination with zo the sediment-well, stand-tube, lter, water induction and educt'ion pipes, and cocks or valves for controlling the several pipes, substantially as and for the purpose hereinbefore set forth.

In testimony whereof I have hereunto set my z5 hand this 13th day of June, A. D. 1882.

ROBERT C. ARMSTRONG.

Witnesses:

EWELL A. DICK, R. J. FLooD. 

